| Sintra to Ansonia (Connecticut) | 3,294.03 mi (5,301.23 km) |
| Sintra to Antelope (California) | 5,564.71 mi (8,955.53 km) |
| Sintra to Anthem (Arizona) | 5,395.07 mi (8,682.52 km) |
| Sintra to Antioch (California) | 5,616.68 mi (9,039.17 km) |
| Sintra to Antioch (Illinois) | 3,979.40 mi (6,404.22 km) |
| Sintra to Apache Junction (Arizona) | 5,388.89 mi (8,672.58 km) |
| Sintra to Apex (North Carolina) | 3,732.06 mi (6,006.17 km) |
| Sintra to Apollo Beach (Florida) | 4,175.90 mi (6,720.46 km) |
| Sintra to Apopka (Florida) | 4,097.28 mi (6,593.93 km) |
| Sintra to Apple Valley (California) | 5,587.38 mi (8,992.02 km) |
| Sintra to Apple Valley (Minnesota) | 4,142.12 mi (6,666.10 km) |
| Sintra to Appleton (Wisconsin) | 3,941.76 mi (6,343.65 km) |
| Sintra to Arbutus (Maryland) | 3,523.99 mi (5,671.31 km) |
| Sintra to Arcadia (California) | 5,641.05 mi (9,078.40 km) |
| Sintra to Arcata (California) | 5,567.19 mi (8,959.52 km) |
